Engine ID and VIN Derivative Location: Notes
WARNING: This page is about a different car, the 2004 Chevrolet Monte Carlo and 2004 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
The eighth character in the Vehicle Identification Number (VIN) identifies the engine. Adhesive-backed labels attached to the engine, laser etching or stampings on the engine block indicate the engine unit number/date code. All engines are stamped with a VIN derivative. For more information on the VIN derivative, refer to VIN Derivative .
The primary location (1) of the VIN derivative for the 3800 L36 engine is in the center of the LH rocker arm or LH side of the engine in the oil pan rail area of the engine.